The answer to that question is
True
The Scarlet Ibis, the older brother loves his younger brother. He teaches him to walk, to play, etc. Then, one day the older a younger brother walk to a tree and the older brother gets angry and runs away. The younger brother is ill and can't run. When the younger brother attempts to run after his older brother, he runs out of air and dies. The older brother feels horrible and the younger brother dying reminded the older brother of the scarlet ibis that had died earlier in the story. Both were helpless.
Hamlet does accept the duel however, for two reasons: firstly, it offers him an opportunity to resolve his conflict with Laertes, whose forgiveness he craves (a fencing duel with foils - blunted blades - is a courtly sport after all, and chiefly an exercise in male bonding).
Secondly, and more significantly, Hamlet is world-weary and ready to succumb to any outside agency.